Add routine to determine if audio has changed in dvdnav stream.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@27015 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 24 insertions, 0 deletions

diff --git a/stream/stream_dvdnav.c b/stream/stream_dvdnav.c
index 1b169cabd0..0d3eedacf5 100644
--- a/stream/stream_dvdnav.c
+++ b/stream/stream_dvdnav.c
@@ -31,6 +31,7 @@ typedef enum {
   NAV_FLAG_VTS_DOMAIN           = 1 << 6,  /* vts domain */
   NAV_FLAG_SPU_SET              = 1 << 7,  /* spu_clut is valid */
   NAV_FLAG_STREAM_CHANGE        = 1 << 8,  /* title, chapter, audio or SPU */
+  NAV_FLAG_AUDIO_CHANGE         = 1 << 9,  /* audio stream change event */
 } dvdnav_state_t;
 
 typedef struct {
@@ -332,6 +333,7 @@ static int fill_buffer(stream_t *s, char *but, int len)
           dvdnav_vts_change_event_t *vts_event = (dvdnav_vts_change_event_t *)s->buffer;
           mp_msg(MSGT_CPLAYER,MSGL_INFO, "DVDNAV, switched to title: %d\r\n", vts_event->new_vtsN);
           priv->state |= NAV_FLAG_CELL_CHANGED;
+          priv->state |= NAV_FLAG_AUDIO_CHANGE;
           priv->state &= ~NAV_FLAG_WAIT_SKIP;
           priv->state &= ~NAV_FLAG_WAIT;
           s->end_pos = 0;
@@ -348,6 +350,7 @@ static int fill_buffer(stream_t *s, char *but, int len)
         }
         case DVDNAV_CELL_CHANGE: {
           priv->state |= NAV_FLAG_CELL_CHANGED;
+          priv->state |= NAV_FLAG_AUDIO_CHANGE;
           priv->state &= ~NAV_FLAG_WAIT_SKIP;
           priv->state &= ~NAV_FLAG_WAIT;
           if (priv->state & NAV_FLAG_WAIT_READ_AUTO)
@@ -360,6 +363,9 @@ static int fill_buffer(stream_t *s, char *but, int len)
           dvdnav_get_highlight (priv, 1);
         }
         break;
+        case DVDNAV_AUDIO_STREAM_CHANGE:
+          priv->state |= NAV_FLAG_AUDIO_CHANGE;
+        break;
       }
   }
   mp_msg(MSGT_STREAM,MSGL_DBG2,"DVDNAV fill_buffer len: %d\n",len);
@@ -906,6 +912,24 @@ int mp_dvdnav_cell_has_changed (stream_t *stream, int clear) {
   return 1;
 }
 
+/**
+ * \brief Check if audio has changed
+ * \param stream: - stream pointer
+ * \param clear : - if true, then clear audio change flag
+ * \return 1 if audio has changed
+ */
+int mp_dvdnav_audio_has_changed (stream_t *stream, int clear) {
+  dvdnav_priv_t *priv = stream->priv;
+
+  if (!(priv->state & NAV_FLAG_AUDIO_CHANGE))
+    return 0;
+
+  if (clear)
+    priv->state &= ~NAV_FLAG_AUDIO_CHANGE;
+
+  return 1;
+}
+
 /* Notify if something has changed in stream
  * Can be related to title, chapter, audio or SPU
  */